US4355951A - Full admission pitot pump - Google Patents

Full admission pitot pump Download PDF

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Publication number
US4355951A
US4355951A US06/311,975 US31197581A US4355951A US 4355951 A US4355951 A US 4355951A US 31197581 A US31197581 A US 31197581A US 4355951 A US4355951 A US 4355951A
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US
United States
Prior art keywords
housing member
stator
passageways
rotor
rotor housing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/311,975
Inventor
Ronald D. Grose
Original Assignee
Internorth Inc
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Filing date
Publication date
Priority to US06/146,136 priority Critical patent/US4304104A/en
Priority to GB08125974A priority patent/GB2104637B/en
Priority to NL8104007A priority patent/NL8104007A/en
Priority to BE0/205850A priority patent/BE890197A/en
Priority to DE19813135154 priority patent/DE3135154A1/en
Priority to FR8117099A priority patent/FR2512529B1/en
Application filed by Internorth Inc filed Critical Internorth Inc
Priority to US06/311,975 priority patent/US4355951A/en
Assigned to INTERNORTH, INC., A CORP. OF DE. reassignment INTERNORTH, INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GROSE, RONALD D.
Priority to CA000411437A priority patent/CA1188153A/en
Priority to GB08226497A priority patent/GB2107396B/en
Priority to NL8203694A priority patent/NL8203694A/en
Priority to AU88723/82A priority patent/AU558112B2/en
Priority to DE19823237041 priority patent/DE3237041A1/en
Priority to JP18119482A priority patent/JPS5879691A/en
Publication of US4355951A publication Critical patent/US4355951A/en
Application granted granted Critical
Assigned to GROSE, RONALD D. reassignment GROSE, RONALD D. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTERNORTH, INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/12—Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/025—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal comprising axial flow and radial flow stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B3/00—Self-contained rotary compression machines, i.e. with compressor, condenser and evaporator rotating as a single unit

Definitions

  • This invention relates to a pitot pump and more particularly to a full admission pitot pump.
  • a pitot heat pump was described.
  • a full admission pitot pump is described which may be used for compressing or pumping fluids and which may also be used in combination with a heat pump such as that described in the co-pending application.
  • pitot pumps comprise a rotating fluid case pump having a stationary streamline pick-up tube extending from the center of the rotating case to near the inner maximum diameter of the rotating case so that the internal passage of the pick-up tube is bent to impact against the flow rushing past the tube.
  • the bent end of the internal passage develops both the centrifugal force pressure of the rotating fluid and the impacted velocity pressure of the fluid rushing past the tube. The pressure so developed, forces the fluid through an internal passage in the pick-up tube and out the discharge of the pump.
  • a principal object of the invention is to provide a full admission pitot pump.
  • a still further object of the invention is to provide a full admission pitot pump which may be used to compress or pump fluid or gases.
  • a still further object of the invention is to provide a full admission pitot pump which includes a shrouded rotor of special design which encloses a specially designed diffuser or stator.
  • a further object of the invention is to provide a full admission pitot pump which permits high radius ratios for improved centrifugal compression.
  • a still further object of the invention is to provide a full admission pitot pump employing a shrouded and vaned diffuser or stator to permit the pitot principle to be employed for efficient kinetic energy conversion to pressure.
  • FIG. 1 is a longitudinal sectional view of the pitot pump of this invention
  • FIG. 2 is an exploded perspective upstream view with portions thereof cut away to illustrate the relationship of the rotor and stator;
  • FIG. 3 is an exploded perspective downstream view with portions thereof cut away which illustrates the stator housing member and stator.
  • FIG. 1 is a longitudinal sectional view of the full admission pitot pump which is preferred to generally by the reference numeral 10.
  • the pitot pump of FIG. 1 is a two-stage pump and it should be clearly understood that the pump may employ as little as a single stage or as many stages as desired.
  • the numeral 12 refers generally to an outer housing comprising rotor housing member 14, stator housing member 16, rotor housing member 18 and stator housing member 20.
  • Rotor housing member 14 includes an inlet end 22 which is in communication with the liquid or gas to be pumped or compressed. As seen in FIG. 1, the lower end of housing member 14 has a greater diameter than the upper end.
  • stator housing member 16 is secured to the lower end of rotor housing member 14 by any convenient means.
  • the lower end of stator housing member 16 has a diameter less than the upper end thereof and is secured to the upper end of rotor housing member 18 by any convenient means.
  • the lower end of rotor housing member 18 is secured by any convenient manner to the upper end of stator housing member 20.
  • the numeral 24 refers generally to a stator positioned within housing 12 and generally including stator portions 26, 28, 30 and 40.
  • Stator portion 26 comprises a shaft which extends upwardly within the housing 12 and which is secured to any convenient support means referred by the reference numeral 42.
  • Stator 24 also includes a shaft portion 44 which extends from the lower end of the housing 12 and which is mounted by any convenient means to support 46.
  • the upper end of rotor housing member 14 is shown to have a sheave or pulley 48 mounted thereon having a belt 50 or the like extending therearound which is driven by motor 52. Actuation of the motor 52 causes the housing 12 to be rotated with respect to the stator as will be described in more detail.
  • rotor housing member 14 is shown to be rotated by a motor 52 in the drawings, it should be understood that other suitable means could also be provided for rotating the rotor housing member.
  • Rotor housing member 14 rotates with respect to stator portion 26 and has a suitable bearing means 54 positioned therebetween.
  • Rotor housing member 14 is provided with a plurality of spaced-apart vane members 56 which extend from the upper to lower ends thereof in the manner best seen in FIG. 2 to define a plurality of spaced-apart passageways 58.
  • the upper ends of the vane members 56 are curved at 60 to aid in the efficient introduction of fluid thereinto.
  • Each passageway is to configured that a certain cross-sectional area progression is maintained in proceeding down the passageway from the inlet and to the outlet end. At the inlet end of the passageway, a rapid increase in cross-sectional area occurs to diffuse the flow to a relatively low velocity from the inlet condition.
  • Stator portion 28 is positioned within the stator housing member 16 and is provided with a plurality of longitudinally curved vane members 62 defining a plurality of spaced-apart passageways 64 therebetween. It is also recommended that a plurality of smaller vane members 66 be provided to more efficiently diffuse the fluid to low velocities in passageways 64. Again, the cross-sectional area is to be varied to maintain low fluid velocities as in the impeller passageways.
  • Rotor housing member 18 includes a plurality of vane member 76 identical to vane members 56 and stator housing member 20 includes a plurality of vane members 62' identical to vane members 60.
  • the medium to be pumped or compressed is introduced into the intake end of rotor housing member 14 by any convenient means.
  • outer housing 12 is rotated by the motor 52 so that the fluid supplied to the upstream ends of the passageways 58 is impinged upon the vane members 56 and centrifugally forced outwardly through the passageways 58.
  • the fluid is discharged from the downstream ends of the passageways 58 to the inlet ends of the passageways 64 in the stationary stator portion 28 which converts the kinetic energy of the rapidly moving fluid to pressure energy by the diffusion process.
  • the medium is passed through the passageways 64 in the stator portion 26 to the inlet ends of the passageways in the rotor housing member 18 which in turn discharges the medium to the inlet ends of the passageways in the stator portion 40.
  • a seal means 68 is provided between the lower exterior portion of stator portion 28 and the lower interior portion of stator housing member 16.
  • a seal means 70 is provided between the lower exterior portion of stator portion 40 and the lower interior portion of stator housing member 20.
  • the pumps can be axially "stacked" to provide very high pressure ratios.
  • the fluid is successively increasingly compressed (in the case of gases) or the fluid is successively increasingly pressurized (in the case of liquids) to achieve efficient pumping.
  • the full admission pitot pump of this invention by employing the shrouded and vaned diffuser or stator, permits the pitot principle to be employed for efficient kinetic energy conversion to pressure energy. It can be seen that the pitot pump of this invention employs a plurality of passageways in the stator which form a series of pitot probes or a series of passageways which function as pitot probes.
  • the design of this invention by employing the full admission principle to provide low parasitic energy losses relative to compression energy expenditure thereby insuring that more efficient pumping or compression will occur.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A full admission pitot pump is described including a rotatable outer housing having at least a first rotor housing member and at least a first stator housing member secured thereto. The rotor housing member has a reduced diameter portion at its first end and an enlarged diameter portion at its second end. The stator housing member has an enlarged diameter portion at its first end which is secured to the enlarged diameter portion of the first rotor housing member. A stator is positioned within the housing and remains stationary as the outer housing is rotated. The first rotor housing member rotates with a housing and defines a plurality of spaced-apart passageways formed therein which communicate with a plurality of spaced-apart passageways formed in the stator. The medium to be pumped or compressed is supplied to the first end of a rotating rotor housing member with the vane members in the rotor housing member causing the medium to be centrifugally spun outwardly and supplied to the passageways in the stator housing member. The relationship of the outer housing, rotor and stator permits the pitot principle to be employed for efficient kinetic energy conversion to pressure.

Description

BACKGROUND OF THE INVENTION
This application is a continuation-in-part application of application Ser. No. 146,136 filed May 2, 1980 now U.S. Pat. No. 4,304,104.
This invention relates to a pitot pump and more particularly to a full admission pitot pump. In the co-pending application, a pitot heat pump was described. In the instant invention, a full admission pitot pump is described which may be used for compressing or pumping fluids and which may also be used in combination with a heat pump such as that described in the co-pending application.
Pitot pumps first appeared in U.S. patent history at the turn of the century. The evolution of the pitot pump can generally be found in U.S. Pat. Nos. 3,384,024; 3,795,459; 3,776,658 and 3,795,457.
Generally speaking, pitot pumps comprise a rotating fluid case pump having a stationary streamline pick-up tube extending from the center of the rotating case to near the inner maximum diameter of the rotating case so that the internal passage of the pick-up tube is bent to impact against the flow rushing past the tube. By such an arrangement, the bent end of the internal passage develops both the centrifugal force pressure of the rotating fluid and the impacted velocity pressure of the fluid rushing past the tube. The pressure so developed, forces the fluid through an internal passage in the pick-up tube and out the discharge of the pump.
Pitot pumps such as that described above have been found to perform generally satisfactorily for liquids but they do experience performance limitations especially for gases because only a single pick-up tube in each stage is employed. In the instant application, a pitot pump is described which may be termed a "full admission" pitot pump since a plurality of passageways or pick-up tubes are employed.
A principal object of the invention is to provide a full admission pitot pump.
A still further object of the invention is to provide a full admission pitot pump which may be used to compress or pump fluid or gases.
A still further object of the invention is to provide a full admission pitot pump which includes a shrouded rotor of special design which encloses a specially designed diffuser or stator.
A further object of the invention is to provide a full admission pitot pump which permits high radius ratios for improved centrifugal compression.
A still further object of the invention is to provide a full admission pitot pump employing a shrouded and vaned diffuser or stator to permit the pitot principle to be employed for efficient kinetic energy conversion to pressure.
These and other objects will be apparent to those skilled in the art.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a longitudinal sectional view of the pitot pump of this invention;
FIG. 2 is an exploded perspective upstream view with portions thereof cut away to illustrate the relationship of the rotor and stator; and
FIG. 3 is an exploded perspective downstream view with portions thereof cut away which illustrates the stator housing member and stator.
DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 is a longitudinal sectional view of the full admission pitot pump which is preferred to generally by the reference numeral 10. The pitot pump of FIG. 1 is a two-stage pump and it should be clearly understood that the pump may employ as little as a single stage or as many stages as desired. Referring to FIG. 1, the numeral 12 refers generally to an outer housing comprising rotor housing member 14, stator housing member 16, rotor housing member 18 and stator housing member 20. Rotor housing member 14 includes an inlet end 22 which is in communication with the liquid or gas to be pumped or compressed. As seen in FIG. 1, the lower end of housing member 14 has a greater diameter than the upper end.
The upper end of stator housing member 16 is secured to the lower end of rotor housing member 14 by any convenient means. The lower end of stator housing member 16 has a diameter less than the upper end thereof and is secured to the upper end of rotor housing member 18 by any convenient means. Similarly, the lower end of rotor housing member 18 is secured by any convenient manner to the upper end of stator housing member 20.
The numeral 24 refers generally to a stator positioned within housing 12 and generally including stator portions 26, 28, 30 and 40. Stator portion 26 comprises a shaft which extends upwardly within the housing 12 and which is secured to any convenient support means referred by the reference numeral 42. Stator 24 also includes a shaft portion 44 which extends from the lower end of the housing 12 and which is mounted by any convenient means to support 46. To illustrate the principle clearly, the upper end of rotor housing member 14 is shown to have a sheave or pulley 48 mounted thereon having a belt 50 or the like extending therearound which is driven by motor 52. Actuation of the motor 52 causes the housing 12 to be rotated with respect to the stator as will be described in more detail. Although rotor housing member 14 is shown to be rotated by a motor 52 in the drawings, it should be understood that other suitable means could also be provided for rotating the rotor housing member.
Rotor housing member 14 rotates with respect to stator portion 26 and has a suitable bearing means 54 positioned therebetween. Rotor housing member 14 is provided with a plurality of spaced-apart vane members 56 which extend from the upper to lower ends thereof in the manner best seen in FIG. 2 to define a plurality of spaced-apart passageways 58. As seen in FIG. 2, the upper ends of the vane members 56 are curved at 60 to aid in the efficient introduction of fluid thereinto. Each passageway is to configured that a certain cross-sectional area progression is maintained in proceeding down the passageway from the inlet and to the outlet end. At the inlet end of the passageway, a rapid increase in cross-sectional area occurs to diffuse the flow to a relatively low velocity from the inlet condition. This is done to minimize frictional losses within the passageway. For incompressible fluids, the passageway cross-sectional area remains constant from this point to the outlet end. For compressible fluids, a gradual reduction in cross-sectional area may be necessary to adjust for increasing fluid density. In this way, an optimum balance can be obtained between compression energy input and parasitic energy losses due to passageway friction (internal flow losses), "windage" and bearing drag. This, it is to be noted, is in contradistinction to conventional centrifugal impeller design where the fluid velocity increases rapidly reaching a very high value at the impeller outlet.
Stator portion 28 is positioned within the stator housing member 16 and is provided with a plurality of longitudinally curved vane members 62 defining a plurality of spaced-apart passageways 64 therebetween. It is also recommended that a plurality of smaller vane members 66 be provided to more efficiently diffuse the fluid to low velocities in passageways 64. Again, the cross-sectional area is to be varied to maintain low fluid velocities as in the impeller passageways.
Rotor housing member 18 includes a plurality of vane member 76 identical to vane members 56 and stator housing member 20 includes a plurality of vane members 62' identical to vane members 60.
In operation, the medium to be pumped or compressed is introduced into the intake end of rotor housing member 14 by any convenient means. As previously stated, outer housing 12 is rotated by the motor 52 so that the fluid supplied to the upstream ends of the passageways 58 is impinged upon the vane members 56 and centrifugally forced outwardly through the passageways 58. The fluid is discharged from the downstream ends of the passageways 58 to the inlet ends of the passageways 64 in the stationary stator portion 28 which converts the kinetic energy of the rapidly moving fluid to pressure energy by the diffusion process. The medium is passed through the passageways 64 in the stator portion 26 to the inlet ends of the passageways in the rotor housing member 18 which in turn discharges the medium to the inlet ends of the passageways in the stator portion 40. It should be noted that a seal means 68 is provided between the lower exterior portion of stator portion 28 and the lower interior portion of stator housing member 16. Likewise, a seal means 70 is provided between the lower exterior portion of stator portion 40 and the lower interior portion of stator housing member 20.
As previously described, as many stages of the pump may be employed as required since the pumps can be axially "stacked" to provide very high pressure ratios. As the medium passes through the various stages of the pump, the fluid is successively increasingly compressed (in the case of gases) or the fluid is successively increasingly pressurized (in the case of liquids) to achieve efficient pumping. The full admission pitot pump of this invention, by employing the shrouded and vaned diffuser or stator, permits the pitot principle to be employed for efficient kinetic energy conversion to pressure energy. It can be seen that the pitot pump of this invention employs a plurality of passageways in the stator which form a series of pitot probes or a series of passageways which function as pitot probes. The design of this invention by employing the full admission principle to provide low parasitic energy losses relative to compression energy expenditure thereby insuring that more efficient pumping or compression will occur.
Thus it can be seen that the full admission pitot pump of this invention accomplishes at least all of its stated objectives.

Claims (9)

I claim:
1. A full admission pitot pump comprising,
a rotatable outer housing means comprised of at least a first rotor housing member and at least a first stator housing member secured to said rotor housing member, said rotor housing member and said stator housing member having first and second ends,
said rotor housing member having a reduced diameter portion at its said first end and an enlarged diameter portion at its said second end,
said stator housing member having an enlarged diameter portion at its said first end and a reduced diameter portion at its said second end,
the second end of said first rotor housing member being secured to the first end of said first stator housing member,
a stator means positioned within said outer housing means,
means for rotating said outer housing means relative to said stator means,
said stator means comprising a first stator portion positioned in said first rotor housing member and a second stator portion positioned within said first stator housing member,
said first rotor housing member including a first rotor portion which rotatably embraces said first stator portion,
said first rotor housing member and said first rotor portion defining a plurality of spaced-apart passageways therebetween,
said second stator portion having a plurality of spaced-apart passageways formed therein,
said passageways in said rotor housing member and said second stator portion having inlet and discharge ends,
the discharge ends of said passageways in said first rotor housing member communicating with the inlet ends of said passageways in said second stator portion,
said passageways in said first rotor housing member extending outwardly from their said inlet ends to their said discharge ends,
said passageways in said second stator portion extending inwardly from their said inlet ends to their said discharge ends,
means for supplying fluid to the inlet ends of said passageways in said first rotor housing member,
the rotation of said outer housing means causing the fluid supplied to said inlet ends of said passageways in said first rotor housing member to be progressively increasingly compressed as it passes from the inlet ends of the passageways in said first rotor housing member to the discharge ends of the passageways in said second stator portion.
2. The full admission pitot pump of claim 1 wherein said passageways in said first rotor housing member are defined by a plurality of spaced-apart vane members extending between said first rotor housing member and said first rotor portion.
3. The full admission pitot pump of claim 2 wherein said passageways in said first stator housing member are defined by a plurality of spaced-apart vane members.
4. The full admission pitot pump of claim 1 wherein said first end of said first rotor housing member forms the intake end of the pump and wherein the inlet ends of the passageways in said first rotor housing member occupy substantially the entire intake end of the pump.
5. The full admission pitot pump of claim 3 wherein said vane members are longitudinally curved.
6. The full admission pitot pump of claim 3 wherein said passageways in said first stator housing member form a plurality of pitot probes.
7. The full admission pitot pump of claim 3 wherein said vane members in said first stator housing member comprise diffusers.
8. The full admission pitot pump of claim 3 wherein said vane members in said first impeller member form diffusers.
9. A full admission pitot pump comprising,
a rotatable outer housing means comprised of at least first and second spaced-apart rotor housing members and first and second spaced-apart stator housing members secured together, each of said rotor housing members and said first and second stator housing members having first and second ends,
the second end of said first rotor housing member being secured to the first end of said first stator housing member, the second end of said first stator housing member being secured to the first end of said second rotor housing member, the second end of said second rotor housing member being secured to the first end of said second stator housing member,
each of said rotor housing members having a reduced diameter portion at its said first end and an enlarged diameter portion at its said second end,
each of said stator housing members having an enlarged diameter portion at its said first end and a reduced diameter portion at its said second end,
a stator means positioned within said housing means,
means for rotating said outer housing means relative to said stator means,
said stator means comprising a first stator portion positioned in said first rotor housing member, a second stator portion positioned within said first stator housing member, a third stator portion positioned within said second rotor housing member, and a fourth stator portion positioned within said second stator housing member,
said first rotor housing member including a first rotor portion which rotatably embraces said first stator portion,
said first and second rotor housing members defining first and second rotor portions which extend around said first and third stator portions respectively,
said first rotor housing member having a plurality of spaced-apart vane members extending inwardly therefrom, to said first rotor portion to define a plurality of passageways therebetween,
said second stator portion having a plurality of spaced-apart vane members formed therein to define a plurality of passageways therein,
said second rotor housing member having a plurality of spaced-apart vane members extending inwardly therefrom to said second rotor portion to define a plurality of passageways therebetween,
said fourth stator portion having a plurality of spaced-apart vane members formed therein to define a plurality of passageways therebetween,
all of said passageways having inlet and dicharge ends,
the discharge ends of said passageways in said first rotor housing member communicating with the inlet ends of said passageways in said second stator portion,
said passageways in said first rotor housing member extending outwardly from their said inlet ends to their said discharge ends,
said passageways in said first stator housing member extending inwardly from their said inlet ends to their said discharge ends,
the discharge ends of said passageways in said second stator portion communicating with the inlet ends of the passageways formed in said second rotor housing member,
the discharge ends of said passageways in said second rotor housing member communicating with the inlet ends of said passageways in said second stator housing member,
means for supplying fluid to the inlet ends of said passageways in said first rotor housing member,
the rotation of said outer housing means causing the fluid supplied to said inlet ends of said passageways in said first rotor housing member to be progressively increasingly compressed as it passes through said housing,
said passageways in said second rotor housing member extending outwardly from their said inlet ends to their said discharge ends,
said passageways in said second stator housing member extending inwardly from their said inlet ends to their said discharge ends.
US06/311,975 1980-05-02 1981-10-16 Full admission pitot pump Expired - Fee Related US4355951A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US06/146,136 US4304104A (en) 1980-05-02 1980-05-02 Pitot heat pump
GB08125974A GB2104637B (en) 1980-05-02 1981-08-26 Pitot heat pump
NL8104007A NL8104007A (en) 1980-05-02 1981-08-28 PITOT HEAT PUMP.
BE0/205850A BE890197A (en) 1980-05-02 1981-09-03 PITOT TUBE HEAT PUMP
DE19813135154 DE3135154A1 (en) 1980-05-02 1981-09-04 "HEAT PUMP"
FR8117099A FR2512529B1 (en) 1980-05-02 1981-09-09 PITOT HEAT PUMP
US06/311,975 US4355951A (en) 1980-05-02 1981-10-16 Full admission pitot pump
CA000411437A CA1188153A (en) 1981-10-16 1982-09-15 Full admission pitot pump
GB08226497A GB2107396B (en) 1981-10-16 1982-09-17 Centrifugal pump
NL8203694A NL8203694A (en) 1981-10-16 1982-09-23 A FULL-PRESSURE PRESSURE PUMP.
AU88723/82A AU558112B2 (en) 1981-10-16 1982-09-27 Pitot pump
DE19823237041 DE3237041A1 (en) 1981-10-16 1982-10-06 FULLY INITIATED PITOT PUMP
JP18119482A JPS5879691A (en) 1981-10-16 1982-10-15 Whole circumference inflow type pitot pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/146,136 US4304104A (en) 1980-05-02 1980-05-02 Pitot heat pump
US06/311,975 US4355951A (en) 1980-05-02 1981-10-16 Full admission pitot pump

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06/146,136 Continuation-In-Part US4304104A (en) 1980-05-02 1980-05-02 Pitot heat pump

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US4355951A true US4355951A (en) 1982-10-26

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Application Number Title Priority Date Filing Date
US06/146,136 Expired - Lifetime US4304104A (en) 1980-05-02 1980-05-02 Pitot heat pump
US06/311,975 Expired - Fee Related US4355951A (en) 1980-05-02 1981-10-16 Full admission pitot pump

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US06/146,136 Expired - Lifetime US4304104A (en) 1980-05-02 1980-05-02 Pitot heat pump

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US (2) US4304104A (en)
BE (1) BE890197A (en)
DE (1) DE3135154A1 (en)
FR (1) FR2512529B1 (en)
GB (1) GB2104637B (en)
NL (1) NL8104007A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009760C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Device for increasing the pressure in a medium flow.
NL1009754C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Method for manufacturing a blade or sheet metal plate.
NL1009758C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Rotation device with drive motor.
NL1009755C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Gas compressor.
NL1009759C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Rotation device.
NL1009757C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Medium transmission.
NL1009756C2 (en) * 1998-07-28 2000-02-04 Vogel Willi Ag Centrifugal pump with very lightweight rotor uses multiple medium channels to reduce instability and vibration while increasing throughput
WO2009046700A1 (en) * 2007-10-10 2009-04-16 Rerum Cognitio Forschungszentrum Gmbh Method for increasing the pressure for various working fluids
US10151314B2 (en) 2013-03-15 2018-12-11 Envirotech Pumpsystems, Inc. Gear-driven flow-through pitot tube pump
RU2700991C1 (en) * 2019-02-13 2019-09-24 Общество с ограниченной ответственностью Научно-производственная фирма "АДЕС" Centrifugal multi-stage pump impeller

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JPS5855655A (en) * 1981-09-30 1983-04-02 株式会社東芝 Turbine for refrigerating cycle
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US5467613A (en) * 1994-04-05 1995-11-21 Carrier Corporation Two phase flow turbine
US5647221A (en) * 1995-10-10 1997-07-15 The George Washington University Pressure exchanging ejector and refrigeration apparatus and method
US5975840A (en) * 1997-10-29 1999-11-02 Envirotech Pumpsystems, Inc. Pitot tube pump having axial-stabilizing construction
CN100365289C (en) * 2006-03-03 2008-01-30 江苏大学 Multi-stage centrifugal pump capable of self-balancing axial force by impeller
US9528530B2 (en) * 2012-04-19 2016-12-27 Kirk D. Hummer System for the heating and pumping of fluid
GB2541456B (en) * 2015-08-21 2019-05-15 Thermaflex Systems Ltd A refrigeration system comprising a pump or an energy recovery apparatus comprising the pump
US10344983B2 (en) * 2017-06-20 2019-07-09 Pratt & Whitney Canada Corp. Assembly of tube and structure crossing multi chambers

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US3734636A (en) * 1970-03-18 1973-05-22 Carrier Corp Rotary pump for heating and cooling system
US3671136A (en) * 1970-12-30 1972-06-20 Carrier Corp Multicompartment pump structure
US3776658A (en) * 1972-08-14 1973-12-04 Kobe Inc Pitot tube for pitot pump
US3795457A (en) * 1973-02-26 1974-03-05 Kobe Inc Multistage pitot pump with means for feeding clean fluid to seals
US3795459A (en) * 1973-03-21 1974-03-05 Kobe Inc Pitot pump with slotted inlet passages in rotor case

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009760C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Device for increasing the pressure in a medium flow.
NL1009754C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Method for manufacturing a blade or sheet metal plate.
NL1009758C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Rotation device with drive motor.
NL1009755C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Gas compressor.
NL1009759C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Rotation device.
NL1009757C2 (en) * 1998-07-28 2000-02-01 Vogel Willi Ag Medium transmission.
NL1009756C2 (en) * 1998-07-28 2000-02-04 Vogel Willi Ag Centrifugal pump with very lightweight rotor uses multiple medium channels to reduce instability and vibration while increasing throughput
WO2000006911A1 (en) * 1998-07-28 2000-02-10 Willy Vogel Ag Gas compressor
WO2000006907A1 (en) * 1998-07-28 2000-02-10 Willy Vogel Ag Rotation device
WO2000006912A1 (en) * 1998-07-28 2000-02-10 Willy Vogel Ag Method for manufacturing a blade or baffle of sheet metal
WO2000006909A1 (en) * 1998-07-28 2000-02-10 Willy Vogel Ag Medium transmission
WO2000006910A1 (en) * 1998-07-28 2000-02-10 Willy Vogel Ag Rotation device with drive motor
WO2000006908A1 (en) * 1998-07-28 2000-02-10 Willy Vogel Ag Device for increasing the pressure in a medium flow
WO2009046700A1 (en) * 2007-10-10 2009-04-16 Rerum Cognitio Forschungszentrum Gmbh Method for increasing the pressure for various working fluids
US10151314B2 (en) 2013-03-15 2018-12-11 Envirotech Pumpsystems, Inc. Gear-driven flow-through pitot tube pump
RU2700991C1 (en) * 2019-02-13 2019-09-24 Общество с ограниченной ответственностью Научно-производственная фирма "АДЕС" Centrifugal multi-stage pump impeller

Also Published As

Publication number Publication date
DE3135154A1 (en) 1983-03-17
US4304104A (en) 1981-12-08
FR2512529B1 (en) 1987-02-20
BE890197A (en) 1982-01-04
NL8104007A (en) 1983-03-16
FR2512529A1 (en) 1983-03-11
GB2104637A (en) 1983-03-09
GB2104637B (en) 1984-09-26

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